Books in Biology (sorted by popularity)
- Lectures on Evolution Thomas Henry Huxley 80 downloads
- Evolution, Old & New Samuel Butler 78 downloads
- A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' Francis Bowen 76 downloads
- Biology : A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907 Edmund B. Wilson 75 downloads
- Catalogue of British Columbia Birds Francis Kermode 75 downloads
- Concerning Animals and Other Matters Edward Hamilton Aitken 73 downloads
- Love's Meinie: Three Lectures on Greek and English Birds John Ruskin 72 downloads
- Essays on early ornithology and kindred subjects James Roxburgh McClymont 71 downloads
- At the Deathbed of Darwinism: A Series of Papers Eberhard Dennert 70 downloads
- Darwiniana : Essays — Volume 02 Thomas Henry Huxley 66 downloads
- On the Reception of the 'Origin of Species' Thomas Henry Huxley 63 downloads
- The Scientific Evidences of Organic Evolution George John Romanes 63 downloads
- Synopsis of Some Genera of the Large Pyrenomycetes C. G. Lloyd 60 downloads
- Criticisms on "The Origin of Species" Thomas Henry Huxley 60 downloads
- Birds of Guernsey (1879) Cecil Smith 59 downloads
- The Evolution of Man Scientifically Disproved in 50 Arguments William A. Williams 58 downloads
- American Addresses, with a Lecture on the Study of Biology Thomas Henry Huxley 52 downloads
- Proefnemingen van de particuliere beweeging der spieren in de kikvorsch (Dutch) Jan Swammerdam 48 downloads
- Evolution: An Investigation and a Critique Theodore Graebner 47 downloads
- The Doctrine of Evolution: Its Basis and Its Scope Henry Edward Crampton 46 downloads
- Development of the Digestive Canal of the American Alligator A. M. Reese 45 downloads
- The Dancing Mouse: A Study in Animal Behavior Robert Mearns Yerkes 44 downloads
- The Darwinian Hypothesis Thomas Henry Huxley 43 downloads
- Human Genome Project, Chromosome Number 01 Human Genome Project 25 downloads